World’s No.1 Black Foam Factory Amazing Round Foam Production!

Black Foam Manufacturing Process Explained

Inside a Smart Factory: PVC Pipe Bending & Forming Process

🤖🐠 AI vs Bad Fish! How Factories Keep Your Seafood Safe Using Robots

I Found Diamonds In The Sand 💎 😱

The Secret World of Mini PC Mass Production!

How to Factory Reset an Android Phone When Locked

1. He said that before the industrial era, nobody slept 8 hours in one block. People slept in two parts: they went to bed after sunset, woke up around midnight, stayed awake for 1–2 hours, then went back to sleep. This “split sleep” was normal for thousands of years. But when factories appeared in the 19th century, society forced everyone into one long sleep window — and the body never fully adapted. He said the modern schedule confuses the brain: it doesn’t understand when it should rest and wh